MIL-PRF-10304/8C
Inches
mm
Inches
mm
Inches
mm
.005
.13
.375
9.53
2.210
56.13
.010
.25
.400
10.16
2.220
56.39
.112
2.84
.500
12.70
2.250
57.15
.125
3.18
.510
12.95
2.440
61.98
.250
6.35
1.000
25.40
2.695
68.45
.260
6.60
1.600
40.64
NOTES:
1. Dimensions are in inches. Unless otherwise specified, tolerances are ± .015 inch for two place (.XX), and
± .005 inch for three place (.XXX) dimensions.
2. Tolerance is ± 0.5 (½) degree on angles.
3. Metric equivalents are given for general information only.
4. Maximum projection from front panel including mounting gaskets (if used).
5. Other forms of terminals, as specified in MIL-PRF-10304, are permitted. The specified minimum length applies
to stud-type terminals only. Terminals shall be equally spaced, from each side of vertical centerline
FIGURE 1. Meter, panel type Continued.
REQUIREMENTS:
(Readings expressed as percent of full-scale value.)
Dimensions and configuration: See figure 1.
Full-scale ranges: See table I.
Scale:
Length: 1.5 inches minimum.
Pointer deflection: 90 degrees nominal.
Color scheme: W, B, and F.
Position influence: ± 2 percent change for 60 degrees rotation from normal operating position.
Accuracy: ± 2 percent at 60 Hz.
Overshoot: 40 percent maximum.
Response time: 2.5 seconds maximum.
Power consumption (loss):
Voltage drop at 60 Hz across the heating element at full scale deflection shall not exceed:
Volts
Ranges
150 milliamperes and less
1.40
Over 150 milliamperes to 1 ampere
0.8
Over 1 to 10 amperes
0.5
Over 10 amperes
0.25
High temperature cycling:
± 8 percent change at 65 degrees C.
± 3 percent permanent change.
Exposure to extreme temperatures:
± 16 percent change at 55 degrees C.
± 3 percent permanent change.
2
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